Wiring Connections - Pentair MYERS MPB Serie Manual De Instalación Y Funcionamiento

WIRING CONNECTIONS

1. Install, ground, wire and maintain this pump in
compliance with the National Electrical Code (NEC)
or the Canadian Electrical Code (CEC) and with all
local codes and ordinances that apply. Consult your
local building inspector for local information.
2. Make sure that the voltage, frequency and phase
(single phase or three phase) of the power supply
agree with that stamped on the motor nameplate. If
in doubt, check with the power company.
3. Some models are equipped with three phase
motors. Three phase motors require magnetic
starters and can run in either direction, depending
on how they are connected to the power supply.
NOTICE: Dual voltage motors without cords are factory
wired for 230 volts. If necessary, reconnect the motor for
115 volts, as shown. All cord connected motors are
wired for 115 volts (See Page 6). Do not alter the wiring
in single voltage motors.
Install, ground, wire, and maintain your pump in
comliance with the National Electrical Code (NEC) or
the Canadian Electrical Code (CEC), as applicable,
and with all local codes and ordinances that apply.
Consult your local building inspector for code
information.
NOTICE: Clamp the power cable to prevent strain on
the terminal screws.
TABLE II - RECOMMENDED FUSING AND WIRING
Motor Volts/
H.P. Phase
1/2 115/230/1
3/4 115/230/1
1 115/230/1
1-1/2 115/230/1
1-1/2 230/1
2 115/230/1
2 230/1
Branch
Max. Fuse
Load Rating
Amps Amps
12.4/ 6.2 20/15
14.8/7.4 20/15
19.2/9.6 25/15
24/12 30/15
12.0 15
26/13 35/20
10.4 15
NOTICE: Your Motor Terminal Board (under the
motor end cover) looks like one of those shown
above. Do not change motor wiring if line voltage
is 230 volts. Connect power supply as shown for
your supply voltage.
NOTICE: Some models are equipped with three phase
motors. Three phase motors require magnetic starters
and can run in either direction, depending on how they
are connected to the power supply.
GROUNDING THE MOTOR
Ground the pump permanently using a wire of size and
type specified by local or National Electrical Code.
Models 7MPB50 and 7MPB75with factory installed
cord and plug:
Risk of electric shock. This equipment is
only for use on 115V and is equipped with an approved
3-conductor cord and 3-prong, grounding-type plug. To
reduce the risk of electric shock, be certain that it is
connected to a properly grounded, grounding-type
receptacle. Do not modify or remove plug. Make sure
pump circuit meets National Electrical Code. To avoid
dangerous electrical shock hazard, keep cord dry at all
times.
Wire Length
0'-50' 51-100'
AWG Wire Size
12/14 12/14
12/14 12/14
10/14 10/14
10/14 10/14
14 14
8/12 8/12
14 14
6
101-200' 201-300'
10/14 8/14
8/14 6/14
8/14 6/12
6/12 6/12
14 12
6/12 4/10
14 14